Giants pregame: Reshaped lineup

Even after opening the second half with two wins — and scoring a staggering six runs in each game — manager Bruce Bochy is juggling his lineup for today’s matchup(5:35 p.m.) with Padres left-hander Cory Luebke.

Bochy wants to keep his starters fresh for the grind of August and September, and his bench players sharp. So center fielder Andres Torres, shortstop Brendan Crawford and second baseman Mike Fontenot all will sit. In their place: Aaron Rowand in center, Miguel Tejada at short and Emmanuel Burriss at second.

This obviously was the plan before Torres busted out for three hits Friday night, and Bochy stuck with it. Crawford looks like he could use a break: He went 0-for-8 in the first two games of this series, even though he hit the ball hard a few times. Fontenot went 0-for-5 on Thursday night (with two lineouts) and bounced back to collect two hits Friday night, while also playing strong defense.

**Bochy acknowledged it was tempting to start rookie catcher Hector Sanchez, because he worked with Zito during the pitcher’s recent rehabilitation assignment. But Eli Whiteside will catch, partly because he had three hits Thursday night — and he also hit a homer off Luebke on July 7 in San Francisco.

**If it seems like right fielder Nate Schierholtz is playing more shallow than usual at Petco Park, there’s a good reason. He really is playing more shallow.

The ball doesn’t carry well at Petco, as Schierholtz rediscovered when he ripped two balls to center field Thursday night and both were caught. He wasn’t thrilled with that, but it reminded him to creep forward on defense.

“I definitely play more shallow here,” he said. “I haven’t had too many balls go over my head.”

As for his long outs the other night, Schierholtz said, “I crushed both of those. It’s the kind of park where you don’t look forward to coming here to hit. You just hope to hit line drives. I know it frustrates a lot of guys.”